Jenny Messerly
751d7ad2e2
This happened because for-of printed using EXPRESSION precedence for the iteration expression, but it should be ASSIGNMENT per the spec (https://tc39.github.io/ecma262/#sec-for-in-and-for-of-statements). Change-Id: I869ad3f1181cfb33c57fe79aebfa3699f66a0712 Reviewed-on: https://dart-review.googlesource.com/c/84833 Commit-Queue: Jenny Messerly <jmesserly@google.com> Reviewed-by: Jake Macdonald <jakemac@google.com> Auto-Submit: Jenny Messerly <jmesserly@google.com>
64 lines
1.6 KiB
Dart
64 lines
1.6 KiB
Dart
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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import "package:expect/expect.dart";
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// Test cascades, issues 7494 (vm), 7689 (dart2js).
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main() {
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var a = new Element(null);
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Expect.equals(1, a.path0.length);
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Expect.equals(a, a.path0[0]);
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// Issue 7693: e0 ? e1 : e2..f() parses as (e0 ? e1 : e2)..f().
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Expect.equals(2, a.path1.length);
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Expect.equals(a, a.path1[0]);
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Expect.equals(a, a.path1[1]);
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Expect.equals(1, a.path2.length); // NPE.
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var b = new Element(a);
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Expect.equals(2, b.path0.length);
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Expect.equals(a, b.path0[0]);
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Expect.equals(b, b.path0[1]);
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Expect.equals(3, b.path1.length);
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Expect.equals(a, b.path1[0]);
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Expect.equals(a, b.path1[1]);
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Expect.equals(b, b.path1[2]);
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Expect.equals(2, b.path2.length); // NPE.
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// Regression test for dartdevc comma expressions (js_ast printer did not
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// generate parentheses around the comma expression).
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var expectedList = [3, 2, 1];
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for (var actual in expectedList.toList()..sort()) {
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Expect.equals(
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expectedList.removeLast(), actual, "list items should be sorted");
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}
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}
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class Element {
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final Element parent;
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Element(this.parent);
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List<Element> get path0 {
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if (parent == null) {
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return <Element>[this];
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} else {
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return parent.path0..add(this);
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}
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}
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List<Element> get path1 {
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return (parent == null) ? <Element>[this] : parent.path1
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..add(this);
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}
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List<Element> get path2 {
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return (parent == null) ? <Element>[this] : (parent.path2..add(this));
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}
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}
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